The Zagreb Indoors (currently sponsored by PBZ) was a men's tennis event on the ATP Tour held in the Croatian capital of Zagreb, other than in 1998 when it was held in Split. From 1996-1998 the tournament was named the Croatian Indoors. From 2009 until 2015, it was a part of the ATP 250 Series and offered 250 ranking points. The tournament was played on a fast and hard indoor surface (RuKort) and featured both men's singles and men's doubles tournament.

The Zagreb Indoors was held for the first time in nine years in 2006. The tournament was an ATP International Series tournament from 2006 to 2008. Previously it had been an ATP World Series event from 1996 to 1997.

Due to financial difficulties the tournament was not held in 2016 and was replaced on the ATP calendar by the Sofia Open.

Year	Champion	Runner-up	Score
1996	Goran Ivanišević	Cédric Pioline	3–6, 6–3, 6–2
1997	Goran Ivanišević (2)	Greg Rusedski	7–6, 4–6, 7–6
1998	Goran Ivanišević (3)	Greg Rusedski	7–6, 7–6
1999– 2005	not held
2006	Ivan Ljubičić	Stefan Koubek	6–3, 6–4
2007	Marcos Baghdatis	Ivan Ljubičić	7–6, 4–6, 6–4
2008	Sergiy Stakhovsky	Ivan Ljubičić	7–5, 6–4
2009	Marin Čilić	Mario Ančić	6–3, 6–4
2010	Marin Čilić (2)	Michael Berrer	6–4, 6–7, 6–3
2011	Ivan Dodig	Michael Berrer	6–3, 6–4
2012	Mikhail Youzhny	Lukáš Lacko	6–2, 6–3
2013	Marin Čilić (3)	Jürgen Melzer	6–3, 6–1
2014	Marin Čilić (4)	Tommy Haas	6–3, 6–4
2015	Guillermo García-López	Andreas Seppi	7–6, 6–3
2016	succeeded by ATP Sofia Open

Year	Champions	Runners-up	Score
1996	Libor Pimek Menno Oosting	Martin Damm Hendrik Jan Davids	6–3, 7–6
1997	Saša Hiršzon Goran Ivanišević	Mark Keil Brent Haygarth	6–4, 6–3
1998	Martin Damm Jiří Novák	Fredrik Bergh Patrik Fredriksson	7–6, 6–2
1999– 2005	not held
2006	Jaroslav Levinský Michal Mertiňák	Davide Sanguinetti Andreas Seppi	7–6, 6–1
2007	Michael Kohlmann Alexander Waske	František Čermák Jaroslav Levinský	7–6, 4–6, [10–5]
2008	Paul Hanley Jordan Kerr	Christopher Kas Rogier Wassen	6–3, 3–6, [10–8]
2009	Martin Damm Robert Lindstedt	Christopher Kas Rogier Wassen	6–4, 6–3
2010	Jürgen Melzer Philipp Petzschner	Arnaud Clément Olivier Rochus	3–6, 6–3, [10–8]
2011	Dick Norman Horia Tecău	Marcel Granollers Marc López	6–3, 6–4
2012	Marcos Baghdatis Mikhail Youzhny	Ivan Dodig Mate Pavić	6–2, 6–2
2013	Julian Knowle Filip Polášek	Ivan Dodig Mate Pavić	6–3, 6–3
2014	Jean-Julien Rojer Horia Tecău (2)	Philipp Marx Michal Mertiňák	3–6, 6–4, [10–2]
2015	Marin Draganja Henri Kontinen	Fabrice Martin Purav Raja	6–4, 6–4
2016	succeeded by ATP Sofia Open

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• Official website
• ATP tournament profile

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